31results about How to "Increased maximum torque" patented technology

The invention provides a nano silicon dioxide with grafting of polyisoprene on the surface, a preparation method and an application thereof. The preparation method comprises the steps of dispersing the nano silicon dioxide in a solvent, then adding an RAFT (Reversible Addition Fragmentation chain Transfer) reagent with carboxyl groups, a dewatering agent and a catalyst for reaction to obtain nano silicon dioxide capable of initiating RAFT polymerization of isoprene monomers; then mixing with the isoprene monomers for reaction to obtain the nano silicon dioxide with grafting of the polyisoprene on the surface. The nano silicon dioxide particles can improve the blending effect of different rubbers or the rubbers and plastic molecules in a more-effective manner by utilizing the compatibility of the grafted polyisoprene and a base material so as to provide a better basis for exerting the synergistic property of different components in a more-effective manner.

The invention provides an anti-deformation dual disc of a hydro-viscous speed regulating clutch. The dual disc is a ring-shaped steel disc with the thickness being 2 to 5mm; and spline teeth are arranged on the inner ring or the outer ring of the ring-shaped steel disc. The anti-deformation dual disc is characterized in that the working surface of the dual disc is wavy, is uniformly provided with concentric ring-shaped grooves along the radial direction and is uniformly provided with radial rectangular grooves along the circumferential direction. The anti-deformation dual disc provided by the invention has the advantages that the radiating condition of friction pairs is improved, the film-forming capability and the kinetic-pressure bearing capability of viscous liquid medium among the friction pairs are enhanced, the thermal deformation of the dual disc of the hydro-viscous speed regulating clutch is reduced, the generation of non-thorough separation between a driving friction part and a driven friction part is prevented, the working performance of the hydro-viscous speed regulating clutch is improved and the service life of the hydro-viscous speed regulating clutch is prolonged.

The invention discloses a walking condition adaptive control system and method for an excavator. The adaptive control system comprises a pressure sensor arranged on a walking pilot valve, a main controller arranged on a rack, an adaptive mode switch arranged on a trim panel in a cab, and a proportional solenoid valve arranged on a main pump. When the adaptive mode switch is set to ON, the pilot pressure of the walking pilot valve is collected through the pressure sensor, and the pressure signal is transmitted to the main controller; the current pilot pressure and the working mode of the main pump are detected through the main controller; and when the pilot pressure is no less than 8 bar, the corresponding command is output through the main controller according to the current working mode of the main pump. According to the adaptive control system, the walking condition is identified through the system automatically, and the power of the main pump is improved in the light load mode automatically, so that the flow supplied to a walking motor is improved; the walking speed of the excavator is increased, and the walking time is shortened; the working efficiency is improved; and on the other hand, through increase of the flow, the maximum torque of the walking motor is improved.

The invention is especially related to guiding against error operation of blocking devices and assemblies for microcomputer in order to prevent error operation to plant and station for power distribution and delivery. The push button type unlock mechanism includes electromagnet, unit for detecting state of mechanism, and moment transmission mechanism of gear wheel. The mechanism includes rack and gear wheel typed electrode axis, which are engaged each other to implement moment transmission. Being located at bottom of the rack, the push button is connected to the bottom rigidly. Being installed inside guide groove of case, the rack can be moved up and down. Force of acting on the push button is transferred to the mechanism directly. Under precondition of not increasing transmission rate, using mode of applying force by thumb and through computer key held by hand increases enforceable maximum moment by human body so as to increase maximum unlocking moment for mechanism greatly.

The invention relates the car engine composite fuel, comprising 30-90% petrol, 10-70% methanol, 0.5 -3% assisting solvent. The assisting solvent comprises 30-60% oleic acid or naphthenic acid or lactic acid, 1-3% orthotoluidine or triethylamine, 806-11% tuwen, 25-63% benzene, and 1% anhydrous sodium sulfate. The product is environmental protection and cleaning. The methanol petrol fuel reduces CO and HC concentrations in vehicle exhaust gas, cleaning air and improving contamination condition. The invention has advantages of simple technology and low cost.

The present invention discloses a load terminal of a high-voltage direct-current relay. The load terminal comprises a connection terminal and a lead-out terminal arranged on a relay ceramic cover, thehead of the lead-out terminal is provided with a holding hole, the lower end of the connection terminal is adaptively inserted into the holding hole and is in screw-thread fit connection with the holding hole, a pressing block is in brazed connection at the mouth of the holding hole of the lead-out terminal through soldering lug, the connection terminal is provided with a spacing portion matchedwith the pressing block, the matching of the pressing block and the spacing portion can press the lower end of the connection terminal into the holding hole to prevent the connection terminal from dropping off. The maximum torque value of the connection terminal is large to allow connection terminals with various thread specifications to meet the torque requirements when the connection terminals are used, the lower end of the connection terminal is pressed into the holding hole to prevent the connection terminal from dropping off through matching of the pressing block and the spacing portion,the connection terminal can be vertically connected with the lead-out terminal through screw-thread fit of a lower thread portion and a small hole, and therefore, the load terminal of the high-voltagedirect-current relay has good use reliability.

The invention provides a self-riveting motor rotor iron core which is provided with an iron core body formed by plural silicon steel plates through laminated combination. Each silicon steel plate is provided with a shaft hole at the center. The periphery of the shaft hole is provided with plural slot holes which are configured in a surrounding way in the preset space. Plural self-riveting points are evenly distributed in the area between the shaft hole and the slot holes. Each silicon steel plate is provided with at least two types of slot holes of different lengths, and the length of the slot hole corresponding to the self-riveting points of each silicon steel plate is relatively less than the length of the slot hole which is not corresponding to the self-riveting points. Therefore, the limitation of the self-riveting points can be avoided, and the maximum torque of the motor can be increased by changing the shape of the rotor slot holes under the condition that the winding parameters cannot be broken through.

The invention discloses an A+B gearbox integrating structure. The A+B gearbox integrating structure comprises an A gearbox body and a B gearbox body, wherein an A box bottom plate is mounted at one end of the A gearbox body, and an A box cover plate is mounted at the other end of the A gearbox body; a B box bottom plate is mounted at one end of the B gearbox body, and a B box cover plate is mounted at the other end of the B gearbox body; a plurality of positioning pins are mounted between the A box cover plate and the B box bottom plate; a rolling bearing which sleeves an output shaft is positioned at one end of the A box cover plate and is rotatably connected into the A gearbox body; a first tooth groove is arranged in one end of the output shaft and is formed in the B gearbox body; a supporting sleeve sleeves an inner hexagonal screw, and a long planetary gear sleeves the supporting sleeve; a second tooth groove is formed in the inner wall of the B gearbox body; and the first tooth groove and the second tooth groove are correspondingly engaged with the long planetary gear. The A+B gearbox integrating structure is high in structure strength, capable of bearing high torque, stableto transmit, and small in noise while running in high-speed and heavy load conditions.

The invention discloses an automotive engine intake manifold. A voltage-stabilizing cavity consists of a straight segment and an oblique upturned inlet manifold; the inlet manifold is connected with a throttle valve installation flange; a plurality of air inlet bent pipes are connected between the straight segment of the voltage-stabilizing and the installation flange of a cylinder cover, wherein, the quantity of the air inlet bent pipes is equal to that of the cylinders; a 145-155 degrees of included angle is arranged between the axes of the straight segment of the voltage-stabilizing and the inlet manifold; each air inlet bent pipe has the same shape and the same length, the length of each air inlet bent pipe is 390-410mm, and the inner diameter thereof is 34-37mm. By changing the shape, length and inner diameter of the air inlet bent pipe, and the included angle between the axes of the straight segment of the voltage-stabilizing and the inlet manifold, the automotive engine intake manifold of the invention can greatly increase the volumetric efficiency of the cylinder, thus improving the power performance of the engine, so that the maximum power of the engine can be increased by 17%, and the maximum torque can be increased by 20%, thereby greatly reducing vibration and noise of the engine.

The invention provides a universal coupling which comprises an intermediate shaft, two connecting jaws and force bearing ring assemblies. Two intermediate jaws are respectively arranged at two ends of the intermediate shaft, the two connecting jaws are matched with the intermediate jaws, the force bearing ring assemblies are used for being connected with the intermediate jaws and the connecting jaws, two trunnions which are coaxially arranged are oppositely arranged on each of the intermediate jaws and the connecting jaws, two groups of paired holes are respectively formed in each force bearing ring assembly, the trunnions on the intermediate jaws and the trunnions on the connecting jaws can be inserted into the paired holes, the axes of the two groups of paired holes in each force bearing ring assembly are perpendicular to each other, and bearings which are matched with the trunnions are arranged in the paired holes. The universal coupling has the advantages that the original cross shafts are replaced by the force bearing ring assemblies, the bearings are arranged on the force bearing ring assemblies, accordingly, the jaws are free of dimensional constraints, the large bearings can be selectively utilized, the universal coupling is high in bearing capacity, and the maximum torque borne by the universal coupling can be increased by 20%-30%.

The invention discloses a double-shear magneto-rheological clutch under permanent magnet excitation. The double-shear magneto-rheological clutch comprises an output shaft, an outer shell, an input rotary drum shell, an input rotary drum core, magneto-rheological glue, an end cover, an input shaft, an inner shell shaft, an input rotary disc, a permanent magnet, a permanent magnet end cover and an inner shell. The inner shell is mounted in a cavity formed by the output shaft end cover, the sleeve, the outer shell and the end cover; a whole formed by connecting the permanent magnet, the permanent magnet sleeve and the permanent magnet end cover is mounted in the inner shell; one end of the spring is connected with the permanent magnet sleeve, and the other end is connected with the output shaft end cover; the input rotating drum shell is fixedly connected with the input rotating disc, and the input shaft is fixedly connected with the input rotating disc. The inner shell shaft is fixedly connected with the inner shell; the input rotary drum core is embedded into the input rotary drum shell, and the input shaft and the end cover are connected through a bearing to form a rotating pair. The magneto-rheological gel is adopted as a force transmission medium, the permanent magnet is adopted as an excitation source, the torque is controllable, the automatic fault prevention function is achieved, magnetic field excitation energy consumption is avoided, and the structure is simple.